The smallest 4-digit number divisible by 3, 5, and 7 is 1050. It is a multiple of their least common multiple (LCM = 105) and the smallest such number exceeding 1000. class 6 Mathematics Textbook Chapter 5 question answer class 6 Mathematics ...
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168 is divisible by 12. The prime factorization of 168 is 2³ × 3 × 7, and 12 is 2² × 3. All factors of 12 are included in 168’s factorization. Class 6 Mathematics Chapter 5 Prime Time question answer Class 6 ...
Prime factorization means expressing a number as a product of its prime factors. For example, 18 = 2 ×3². It breaks numbers into their smallest building blocks, which are prime numbers. 141: 3 × 47, 1728: 2⁶ × 3³, 1024: ...
Co-prime pairs are: Co-prime numbers are two numbers that share no common factors other than 1. Their greatest common divisor (GCD) is 1. Examples include (8, 15) and (21, 22), which have no shared prime factors. (18, 35): GCD = 1 (15, ...
Only 5600, 6000, and 77622160 are divisible by all. Divisibility by 2, 4, 5, 8, and 10 requires multiples of their least common multiple (LCM), 40. These numbers meet the criteria. Class 6 NCERT Ganita Prakash Chapter 5 Prime Time class 6 ...
Three pairs of prime numbers under 20 with sums as multiples of 5 are: (2, 3), (7, 13), and (11, 19). Their sums are 5, 20, and 30, respectively, all divisible by 5. Class 6 Mathematics Ganita Prakash Prime Time Class 6 ...
The numbers are 6 and 9. Their least common multiple (LCM) is 54, the first instance of ‘idli-vada’ after 50. Both numbers are under 10, satisfying the game’s criteria. Class 6 NCERT Ganita Prakash Chapter 5 Prime Time class 6 Mathematics Textbook ...
The number is 35. It is less than 40, divisible by 7, and its digits (3 and 5) add to 8. The factors of 35 are 1, 5, 7, and 35. Class 6 Mathematics Chapter 5 Prime Time question answer Class 6 ...
The multiples of 40 in this range are 320, 360, and 400. These numbers are calculated by identifying integers divisible by 40 within the interval (310 < x ≤ 410). Class 6 Mathematics Chapter 5 Prime Time question answer Class 6 NCERT ...
‘Idli Vada’ is said for multiples of both 3 and 5 (LCM = 15). The 10th such multiple is 15 × 10 = 150. Thus, Idli Vada is said at 150. Class 6 Mathematics Chapter 5 Prime Time question answer Class 6 ...