Question

21 and 30
Factor in ​

Answer 1

factor of 21 and 30, we need to factor each number (factors of 21 = 1, 3, 7, 21; factors of 30 = 1, 2, 3, 5, 6, 10, 15, 30) and choose the greatest factor that exactly divides both 21 and 30, 

Answer 2

Answer:

21=7*3

30=5*2*3

Step-by-step explanation:

Factors of 21 are:-

21=3 multiply by 7

30=5 multiply by 2 and then multiply by 3

therefore,

by which we can say that

21=3*7

30=5*2*3