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 ...
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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 ...
(30, 45): Not co-prime (GCD = 15). (57, 85): Co-prime (GCD = 1). (121, 1331): Not co-prime (GCD = 11). (343, 216): Co-prime (GCD = 1). class 6 Mathematics Textbook Chapter 5 question answer class 6 Mathematics Chapter 5 Prime Time solutions
False. Prime numbers have exactly two factors: 1 and the number itself. For instance, 7 has only two factors: 1 and 7, which is what defines it as a prime number. Class 6 Mathematics Chapter 5 Prime Time question answer Class 6 ...