Find a + b from given factor tree.
42
7
49
53
Every positive odd integer is in the form
3 q
3 q + 1
2 q
2 q + 1
What is the HCF of two consecutive natural numbers?
1
2
3
4
The prime factors of 176 are
2 × 2 × 2 × 2 × 11
2 × 2 × 2 × 3 × 11
2 × 2 × 3 × 3 × 11
2 × 2 × 2 × 11 × 11
What are the quotient and the remainder when 10 is divided by 3?
3, 1
1, 3
1, 1
3, 3
Find the greatest number of four digits which is exactly divisible by 6, 8, 10 and 12.
5760
4239
9960
9036
If q is some integer, then a positive even integer is of the form
2q
q - 1
q + 1
After how many digits will the decimal expansion of 3/8 come to an end?
5
Find the greatest number less than 900 which is divisible by 8, 12, 28 :
852
152
840
828
Euclid's division lemma can be used only for calculating
L.C.M
H.C.F
Prime number
Even prime number
