2, 5, 7 and 11
2^2x5x7x11
No.
What are the greatest common factors of 990 and 1540
2x2x5x7x11
Actually 2x2x5x7x11 is a prime factorization and on multiplying these numbers we get 1540. Prime factorization of a number is the prime numbers which on multiplying together give that number.
1540!! :)
1,2,4,5,7,10,11,14,20,22,28,35,44,55,70,77,110,140,154,220,308,385,770,1540
2 x 2 x 5 x 7 x 11 = 1540
1540 = 2 x 2 x 5 x 7 x 11 All of its prime factors are not even in quantity, hence it's not a perfect square number. PS You could've used a calculator instead.
2 x 2 x 5 x 7 x 11 = 1540
No. All even numbers (except 2) are composite.
Prime factors are factors that are also prime numbers.