Number theory

Answer all the questions below and press submit to see how many you got right.

id: 14137

What is the sum of the exponents in the prime factorization of 7350?

id: 13602

Which integer $n$ with $0\leq n<19$ satisfies $28\cdot 19+1\equiv n \mod{19}?$

id: 14114

What is the prime factorization of 30?

  • $2^23^15^1$
    $2^13^15^1$
    $2^13^25^1$
    $2^2+3^2+5^1$