1404 is not a multiple of:

Answer: 32

Explanation: Check which of the given numbers divides 1404 evenly.

• 6: 1404 is even and the sum of its digits is 1+4+0+4 = 9, which is divisible by 3. Therefore 1404 is divisible by 6. (1404 ÷ 6 = 234)

• 13: 13 × 108 = 1404, so 13 divides 1404 exactly. (1404 ÷ 13 = 108)

• 32: 32 × 43 = 1376, which leaves a remainder of 1404 − 1376 = 28. So 32 does not divide 1404 evenly.

• 39: 39 × 36 = 1404, so 39 divides 1404 exactly. (1404 ÷ 39 = 36)

Conclusion: Among the given numbers, only 32 does not divide 1404 evenly, so 1404 is not a multiple of 32.