Solve 56*31-644div4+987-654+21*7div3+43+20div5-30div3-10+20

$$56 \times 31-644 \div 4+987-654+21 \times 7 \div 3+43+20 \div 5-30 \div 3-10+20$$

Evaluate

$$2004$$

Solution Steps

Multiply 56 and 31 to get 1736.

$$1736-\frac{644}{4}+987-654+\frac{21\times 7}{3}+43+\frac{20}{5}-\frac{30}{3}-10+20$$

Divide 644 by 4 to get 161.

$$1736-161+987-654+\frac{21\times 7}{3}+43+\frac{20}{5}-\frac{30}{3}-10+20$$

Subtract 161 from 1736 to get 1575.

$$1575+987-654+\frac{21\times 7}{3}+43+\frac{20}{5}-\frac{30}{3}-10+20$$

Add 1575 and 987 to get 2562.

$$2562-654+\frac{21\times 7}{3}+43+\frac{20}{5}-\frac{30}{3}-10+20$$

Subtract 654 from 2562 to get 1908.

$$1908+\frac{21\times 7}{3}+43+\frac{20}{5}-\frac{30}{3}-10+20$$

Multiply 21 and 7 to get 147.

$$1908+\frac{147}{3}+43+\frac{20}{5}-\frac{30}{3}-10+20$$

Divide 147 by 3 to get 49.

$$1908+49+43+\frac{20}{5}-\frac{30}{3}-10+20$$

Add 1908 and 49 to get 1957.

$$1957+43+\frac{20}{5}-\frac{30}{3}-10+20$$

Add 1957 and 43 to get 2000.

$$2000+\frac{20}{5}-\frac{30}{3}-10+20$$

Divide 20 by 5 to get 4.

$$2000+4-\frac{30}{3}-10+20$$

Add 2000 and 4 to get 2004.

$$2004-\frac{30}{3}-10+20$$

Divide 30 by 3 to get 10.

$$2004-10-10+20$$

Subtract 10 from 2004 to get 1994.

$$1994-10+20$$

Subtract 10 from 1994 to get 1984.

$$1984+20$$

Add 1984 and 20 to get 2004.

$$2004$$

Factor

$$2^{2}\times 3\times 167$$