No. All even numbers (except 2) are composite.
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!! :)
No.
1540 has the prime factorization of 2 times 2 times 5 times 7 times 11
2x2x5x7x11
2 x 2 x 5 x 7 x 11 is the prime factorization of 1540.
1540
2^2x5x7x11
That's the prime factorization of 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