Advertisements
Advertisements
Question
Common prime factors of 30 and 250 are
Options
2 × 5
3 × 5
2 × 3 × 5
5 × 5
Advertisements
Solution
2 × 5
Explanation;
Hint:
Prime factors of 30 are 2 × 3 × 5
Prime factors of 250 are 5 × 5 × 5 × 2
∴ Common prime factors are 2 × 5
APPEARS IN
RELATED QUESTIONS
Factorise the following number into prime.
57
Factorise the following number into prime.
216
Factorise the following number into prime.
765
Give the prime factorization of the following number:
420
Find the prime factors of 40.
The number of distinct prime factors of the smallest 4 digit number is __________
I am a two digit prime number and the sum of my digits is 10. I am also one of the factors of 57. Who am I?
Find the prime factorisation number by factor tree method and division method.
60
Write the greatest 4-digit number and express it in terms of its prime factors.
In which of the following expressions, prime factorisation has been done?
70 = 2 × 5 × 7
