Express the lowest common multiple of 4 5 6 and 9
To find the lowest common multiple (LCM) of 4, 5, 6, and 9, we can list out the prime factorization of each number:
4 = 2^2
5 = 5^1
6 = 2^1 * 3^1
9 = 3^2
To find the LCM, we need to include each prime factor the maximum number of times it appears in any of the numbers:
2^2 * 3^2 * 5^1 = 4 * 9 * 5 = 36 * 5 = 180
Therefore, the lowest common multiple of 4, 5, 6, and 9 is 180.