MEDIUM
10th Assam Board
IMPORTANT
Earn 100

Find the LCM and HCF of the following pairs of integers and verify that LCM×HCF= product of the two numbers.
 510 and 92

Important Questions on Real Numbers

MEDIUM
10th Assam Board
IMPORTANT
Find the LCM and HCF of 336 and 54 and verify that LCM×HCF= product of the two numbers.
MEDIUM
10th Assam Board
IMPORTANT
Find the LCM and HCF of the following integers by applying the prime factorization method.
12,15 and 21
 
MEDIUM
10th Assam Board
IMPORTANT
Find the LCM and HCF of the following integers by applying the prime factorization method.
17,23 and 29
 
MEDIUM
10th Assam Board
IMPORTANT
Find the LCM and HCF of the following integers by applying the prime factorization method.
8,9 and 25
MEDIUM
10th Assam Board
IMPORTANT
Given that HCF 306, 657=9, find LCM 306, 657.
EASY
10th Assam Board
IMPORTANT
Check whether 6n can end with the digit 0 for any natural number n.
MEDIUM
10th Assam Board
IMPORTANT
Explain why 7×11×13+13 and 7×6×5×4×3×2×1+5 are composite numbers.
MEDIUM
10th Assam Board
IMPORTANT
There is a circular path around a sports field. Sonia takes 18 minutes to drive one round of the field, while Ravi takes 12 minutes for the same. Suppose they both start at the same point and at the same time, and go in the same direction. After how many minutes will they meet again at the starting point?